Means for controlling gas-engines.



No. 845,732. ,PATENIED FEB. 26, 1907 "B. EVANS.

M EA-NSFOR CONTROLLING GAS ENGINES.

,- APPLIOATION FILED we. 11, 1905 M'ims 5w 1712/1; MW"

I Jim/am Evans I l UNITED STATES PATENT @FFTCE.

EVAN EVANS, OF BUTLER, PENNSYLVANIA, ASSIeNOR TO THE EVANS MAN- UFACTURING COMPANY, OF BUTLER, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

Specification of Letters Patent.

Patented Feb. 26, 1907.

Application filed August 11, 1905. Serial No. 278,781.

To all w/wm, it may cmoccrn:

Be it known that I, EVAN EVANS, a citizen of the United States of America, residing at Butler, in the county of Butler and State of Pennsylvania, have invented certain new and useful Improvements in Means for ()ontrolling Gas-Engines, of which the following is a specification, reference bemg had therein to the accompanying drawing.

This invention relates to certain new and useful improvements in means for controlling gas-engines.

The invention aims to provide positive and reliable means 'for effecting the perfect control of a gas-engine, the means devised by me being particularly adapted for controlling gas-engines Such as are used in connection with Oil-well rigging and having a special type of clutch mechanism which is employed for imparting a rotary motion to a belt-pulley or other rotating body in a reverse direction without regard to the direction of rotation or operation of the gas-engine.

The essential features of the present invention (one of which is an improvement upon a patent granted to myself and NV. A. Gerner July 25, 1905, NO. 795,499, which is wholly genericto the present case) are necessaril y susceptible to structural change without departing from the scope of the invention; but the prelerred embodiment of the invention is illustrated in the accompanying drawing, which shows a diagrammatic elevation of a part of an oil-well rigging and a part of the gas-engine in connection with which my present improvement is shown in diagrammatic form.

In the drawing I have illustrated a gasengine 1 and a clutch mechanism 2, the latter shown only conventionally and being of a form shown in detail in the patent heretofore referred to. The gas-engine is mounted upon a suitable froundation or base 3.

Gasengnies or other type of engines used in connection with Oil and gas well drilling are usually located in what is termed an engine-house, designated in the drawing herewith as 5, and which house is located a considerable distance from the derrick 6.

The form of clutch shown in the patent heretofore referred to embodies a brakei pulley l9 and in the derrick provide a pulley band, and in the present invention I connect this brake-band to a lever 7, the movement of which in one direction tightens the brake band upon a ring or annulus carried by the fly-wheel 8 of the engine and at the Same time through the medium of mechanism lully described in the aforesaid Letters Patent retracts the clutch-shoes. An opposite movement of the lever 7 releases the brake-band and at the same time throws the clutch-shoes into Operative position, whereby to positively connect the pulley of the clutch mechanism to the drive-shait 9 of the engine and cause these parts to rotate in unison.

To control and Operate this mechanism from the derrick 6 is the broad object of my present invention, and to accomplish this I provide in the derrick 6 an adjustable pulley 10. An endless cord or cable 11 passes over said adjustable pulley 10 and Over a pulley 12 in the engine-house 5. The pulley 12 is supported in a bracket 14, which may be supported from the rear wall 15 of the enginehouse by a cable or bracket 16, as clearly shown in the drawing.

The upper end of the lever 7 is attached to one of the strands of the endless cable 11, whereby as said cable is actuated the lever 7 will be moved to actuate the mechanism, as heretofore described. The pulley 10 is preferably adjustably mounted in order that it may be adjusted to keep the cable 11 in a taut condition, which will serve to keep the pulley 12 in the extended position shown in the drawing.

Pivotally mounted in the derrick 6 at any suitable point is a lever 17, this lever being connected to one of the strands of the cable 11, as at 18. By this construction it will be Observed that the Operator in the derrick by moving the lever 17 in the desired direction cancontrol the clutch mechanism of the gasengine from his position in the derrick, the movement of the lever in one direction tending to retract the clutch-shoes, and the Opposite movement of the lever tending to throw the clutch shoes into operation. As this constructionpermits the attendant or Operator in the derrick controlling the clutch, it is also desirable that he have control of the engine from the same point of vantage, and to accomplish this I provide the controllingvalve 18 (shown conventionally) with a 20 which is adjustably mounted in'the same manner as the pulley 10. Over thesepulleys. 19'Iand 2O l'passesacable :21, which may v be; actuated by hand by the operator inthe"- derrick, whereby to open or close the controlling-valve of the engine, as may be desired.

What I claim is 13 Thezcombinatiorrvwith a derrick, ,aagassengine located at a point removed vfrom the.

derrick and having a clutch mechanism, of

aapulley; mounted in .the derrick, a second pulley mounted ladjacentl to the gas-engine, anlever: connectedito the clutch mechanism offtheigas-engine, an endless cable passing. over .saidfpull'ys and having; theouter end of I said lever connected to a portion of'the cable, anda lever p ivot'ed'in the derrick and'als'o connected'tda'portion offsaid'cablefor movinglthesame onrits pulleys to actuate the clutch mechanism of the gas-engine.

2'; The herein-described means for controllingclutch -mechanism of a gas-engine at a point remote therefrom, comprising a pair of distantly-located pulleys,v an endless cable; passingToversaidpullys, a'le-veri'connectmg tantly-locatedpulleys, one located adjacent the gas-engine and the. other remotecthere from, an endless cablerpassing over said pul keys, and means connected to said Tcab'le' and operating to actuate the controllingmechan-- sm of "said gas-engine.

In testimony Wh'ereof I'affix mysignature in the vpresence of tw'o Witnesses.

EVANL EVANS;

Witnesses:

LEWIS PI WALKER, H. H; REED? 

